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Topic Review (Newest First)
05-19-2012 09:46 AM
SirGeorgeKillian So riddle me this batman. You put a cold air intake on your Jeep. So it is sucking in air that is a little cooler. It is sucking air through a manifold that sits an INCH ABOVE YOUR EXHAUST HEADER! Boy, it is a good thing you are sucking all that cold air in!
05-19-2012 09:14 AM
DarthLEGO
Quote:
Originally Posted by Jerry Bransford
That type of air intake, one that is louder and produces a "growl" as yours does, is well know for how its Placebo Effect can often produce more power like that.
Sssshhh. I am not supposed to K&Now it is a placebo.....
05-18-2012 08:10 PM
lindel Much like a "Hi-Performance Sound Package"...IOW, it sounds like it's got hi-performance...

Without doing the work to make the engine capable of moving more air (camshaft, heads, intake, exhaust, PCM, fuel system...and the list goes on...) all a CAI is going to do is make noise and let dust into the engine.
05-18-2012 07:06 PM
Jerry Bransford
Quote:
Originally Posted by DarthLEGO View Post
And I did notice a difference from the stock taking off from a dead stop.
That type of air intake, one that is louder and produces a "growl" as yours does, is well know for how its Placebo Effect can often produce more power like that.
05-18-2012 06:50 PM
DarthLEGO So what you all are saying is that I shouldn't have dropped a couple hundred on an intake for my new habit? Even though I have a lead foot and love weaving in and out of traffic. Not to mention I love the growl it makes. And I did notice a difference from the stock taking off from a dead stop.

Speaking as a person who has come from a long line of rice burners.

Not to mention that I have a 4.0 in my LJ

(I could be just stirring the pot more too <WEG>)
04-18-2012 01:26 AM
lindel
Quote:
Originally Posted by rrich View Post
He He - some people complain the after market filters get dirty too fast.

Whats the purpose of the filter if it's not to catch the dirt before it goes into your engine?

The issue isn't that they get dirty too fast, the issue is they let too much stuff go by. They don't catch the really fine particles of dust that paper elements do. Foam elements aren't any better than the stacked, oiled gauze that K&N type filters use.
04-17-2012 09:29 PM
Patrick H OK, you got me. I pull a 25ft trailer (with my truck) and I see WOT for periods of time. But, not @ redline. At least, not for too long..
04-17-2012 09:19 PM
rrich He He - some people complain the after market filters get dirty too fast.

Whats the purpose of the filter if it's not to catch the dirt before it goes into your engine?

THMINK!

WOT can be at any speed, even pulling a hill at lower RPM can be at WOT.
04-17-2012 12:23 PM
Racer38 Geez when I want to go fast I just get in my Blown Stang and let it rip, 535 at the rear wheels will show you just how slow a Jeep is hehehe.

Now is this considered a CAI

04-17-2012 12:09 PM
sparky
Quote:
Originally Posted by 6InARowMakesItGo View Post
This thread is fun. I can't wait to get my new CAI for my lawn mower.
Why?

It's much easier to run a snorkel up the handle.
04-17-2012 12:02 PM
00tj2
Quote:
Originally Posted by 6InARowMakesItGo View Post
This thread is fun. I can't wait to get my new CAI for my lawn mower.
04-17-2012 12:01 PM
6InARowMakesItGo This thread is fun. I can't wait to get my new CAI for my lawn mower.
04-17-2012 10:53 AM
jgorm
Quote:
Originally Posted by WaterDR View Post
One minute WOT in a fast Mustang and I don't think you would have a motor left.
It depends on the tune. I've done tunes for high speed and road race cars that are far more conservative than tunes for 1/4 mi cars.
04-17-2012 10:38 AM
WaterDR One minute WOT in a fast Mustang and I don't think you would have a motor left.
04-17-2012 10:28 AM
00tj2
Quote:
Originally Posted by jgorm View Post
I've done 15+ minutes of WOT at 18psi in my motorhome. At least 5 min of WOT in my jeep pulling up grades. My mustang, not so much, 1min of WOT and I'd be dead.
I used to have the same problem in my mustang...
04-17-2012 09:17 AM
jgorm
Quote:
Originally Posted by Patrick H View Post
OK, but in a real world scenario, how often and for how long is any engine @WOT?
I've done 15+ minutes of WOT at 18psi in my motorhome. At least 5 min of WOT in my jeep pulling up grades. My mustang, not so much, 1min of WOT and I'd be dead.
04-16-2012 06:41 PM
Jerry Bransford
Quote:
Originally Posted by Patrick H View Post
OK, but in a real world scenario, how often and for how long is any engine @WOT?
That's the joke, I dunno how many times we have to keep bringing people's heads down out of the clouds who keep talking about scenarious that are only applicable at WOT and high near or at redline engine RPMs.
04-16-2012 05:57 PM
WaterDR If you are racing, you are at WOT all the time. In a jeep, you are not.
04-16-2012 05:03 PM
UnlimitedLJ04
Quote:
Originally Posted by Patrick H View Post
OK, but in a real world scenario, how often and for how long is any engine @WOT?
my stays at ~4000-4500rpms for about 15-25 miles when I'm driving I-70 toward the Eisenhower Tunnel, if I want to attempt to hold ~55mph in a 65mph zone...which I detest.

Quote:
Originally Posted by ThingsAbove View Post
The "dyno butt" has been located in the redneck engineering fossil records.
yea, the original butt-dyno is responsible for the term "horse-power"
04-16-2012 03:32 PM
ThingsAbove
Quote:
Originally Posted by WaterDR View Post
Some people still believe in the Easter Bunny.

I think as long as something cost money, people will believe that it works and swear that their butt is calibrated to measure the hp gains
The "dyno butt" has been located in the redneck engineering fossil records.
04-16-2012 03:26 PM
Patrick H
Quote:
Originally Posted by jgorm View Post
Since 2005. If you are also a dyno tuner you should know that map based vehicles are not affected by intake changes. You would also know that you can be lean at wot In open loop without throwing a code, and that it won't throw a code until you are roughly 25% out of calibration.
OK, but in a real world scenario, how often and for how long is any engine @WOT?
04-16-2012 11:54 AM
WaterDR Some people still believe in the Easter Bunny.

I think as long as something cost money, people will believe that it works and swear that their butt is calibrated to measure the hp gains
04-16-2012 11:27 AM
lindel I thought we already hashed all this out...

Fact of the matter is, the stock intake/filter is capable of supplying more air than the engine needs, even at WOT and max rpm. Until you increase the engine's capacity to move air, both in and out, the stock intake/filter is NOT an issue.

Yes, temps play their part, but are engineered in as much as possible.
04-16-2012 09:54 AM
jgorm
Quote:
Originally Posted by Patrick H View Post
It is true. How long have you been doing driveability diagnostics for a living?
EFI dyno tuner for Chrysler huh.
Since 2005. If you are also a dyno tuner you should know that map based vehicles are not affected by intake changes. You would also know that you can be lean at wot In open loop without throwing a code, and that it won't throw a code until you are roughly 25% out of calibration.
04-16-2012 07:00 AM
Patrick H
Quote:
Originally Posted by lee indy View Post
No maps? Um you must have a carb
He said MAP based. It means it has no MAF sensor.
04-16-2012 02:52 AM
lee indy No maps? Um you must have a carb
04-15-2012 10:38 PM
Patrick H
Quote:
Originally Posted by jgorm View Post
No Jeeps are map based so it doesn't matter.



Not true.
It is true. How long have you been doing driveability diagnostics for a living?
EFI dyno tuner for Chrysler huh.
04-15-2012 09:34 PM
jgorm
Quote:
Originally Posted by lee indy View Post
Lets not forget the engine damage from.running to lean. Very few vielchels benefit from a new intake and none benifit without tunning. Do you really think you are smarter than the designer?
No Jeeps are map based so it doesn't matter.

Quote:
Originally Posted by Patrick H View Post
Even if it did make it lean (it won't) you'd get a DTC/MIL long before it was too lean to do any damage.
Not true.
04-15-2012 09:11 PM
Patrick H Even if it did make it lean (it won't) you'd get a DTC/MIL long before it was too lean to do any damage.
04-15-2012 08:53 PM
Jerry Bransford A CAI won't cause an engine to run too lean since a CAI can't force more air into the engine than the engine is requesting/pumping into itself.
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